Fatal error: Uncaught Error: Call to undefined function acf_get_setting() in C:\xampp\htdocs\wp-content\plugins\advanced-custom-fields\includes\admin\views\upgrade\notice.php:6 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\advanced-custom-fields\includes\admin\views\upgrade\notice.php on line 6